Tensiomyography measures how a muscle contracts in response to a stimulus; myotonometry measures resting soft tissue stiffness from a brief tap. For chairside chiropractic use, myotonometry is the practical choice: handheld, electrode-free, and fast. Tensiomyography is reliable but suits sports and research labs where contractile detail matters.
What does each tool actually measure?
They measure different things. Tensiomyography (TMG) applies an electrical stimulus and tracks contraction time and maximal displacement, so it reads active contractile behavior. A 2023 review in Frontiers in Physiology confirms TMG reliably detects neuromuscular change. Myotonometry reads passive stiffness at rest. They are not interchangeable.
Which is practical chairside?
Myotonometry, by a wide margin. It needs no electrodes, no stimulator, and no muscle activation, just a resting reading in seconds. TMG requires electrode placement and a controlled joint angle. A 2025 study in Sports showed TMG sensitivity to protocol-specific change, which is its strength in labs, not at a busy practice.
| Factor | Tensiomyography | Myotonometry |
|---|---|---|
| Measures | Contractile response to stimulus | Resting soft tissue stiffness |
| Setup | Electrodes + stimulator | Handheld, no electrodes |
| Time per site | Minutes | Seconds |
| Best fit | Sports, research labs | Chairside re-exam tracking |
| Reliability | Good to excellent | Good to excellent |
Do they agree with each other?
Partly. A study on tensiomyography and elastography stiffness found moderate association, so the methods may overlap but are not the same measurement. Stiffness and pain stay independent in either case, so neither reading diagnoses the cause of a patient's pain.
Survey data: In a 2026 survey of 455 patients who stopped chiropractic care, 58% cited perception-based reasons: 36% felt no progress, and 22% felt better and stopped. Neither group was told their stiffness was still elevated.
Frequently Asked Questions
What is the difference between tensiomyography and myotonometry?
Tensiomyography measures how a muscle responds to an electrical stimulus, capturing contraction time and displacement. Myotonometry measures resting soft tissue stiffness from a brief mechanical tap. One reads active behavior, the other passive stiffness.
Which is more practical chairside in a chiropractic clinic?
Myotonometry. It is fast, handheld, needs no electrodes, and takes a resting reading in seconds. Tensiomyography needs electrode placement and a stimulator, which fits research and sports settings better.
Is tensiomyography reliable?
Yes, reviews report good to excellent reliability when protocols are standardized. It correlates moderately with elastography stiffness, but consistent electrode placement and joint angle matter for repeatable results.
Does either tool diagnose the cause of pain?
No. Both quantify a tissue property. Stiffness and pain are independent, so a reading may reflect mechanical change but does not diagnose pain or predict recurrence.
Can I show patients results from either device?
Both produce numbers, but myotonometry gives a stiffness reading that is simple to repeat at re-exam and show as change over time. That is easier to communicate than contractile waveforms.
Which should a chiropractor choose for tracking progress?
For tracking resting stiffness across visits, myotonometry is the practical fit. Tensiomyography suits labs studying contractile properties. Many practices pair stiffness readings with range-of-motion and a function questionnaire.
One approach is to add a second channel of objective data alongside subjective pain reports. Options include soft tissue stiffness measurement (such as MuscleMap), range-of-motion testing, and posture analysis. Each gives you something concrete to show the patient rather than asking them to take your word for it.